Question
Find the difference between angle and its complement if
the angle is five-thirteenth of its complement.Solution
Let the angle be 'A'.
Complement of 'A' = 90° - A
So, 'A' = (5/13) X (90° - A)
Or, 13A = 450° - 5A
Or, 18A = 450°
Or, 'A' = 25°
Complement of 'A' = 90° - 25° = 65°
Required difference = 65° - 25° = 40°
Hence, option b.
If I is the incentre of ΔABC , if ∠BAC = 650 , then what is the measure of ∠BIC?
The length of a tangent from a point A at a distance 5 cms. from the centre of the circle is 4 cms. Radius of the circle is
If in a ΔABC, AD is internal angle bisector & D is a point on BC, AB = 8 cm, BC = 10 cm then what is BD:CD?
What will be circumradius of a right angle triangle whose base is 20cm & height is 21cm ?
In a rectangle, length : breadth = 4 : 3. What is the value of length : diagonal?
One chord of a circle is given as 21.5 cm. Then the radius (r) of the circle must be:
A solid cylinder has radius of base 14 cm and height 15 cm. 4 identical cylinders are cut from each base as shown in the given figure. Height of small c...
In ABC,D is a point on side AB such that BD = 2 cm and DA = 3 cm. (E is a point on BC such that DE) AC, and AC = 4 cm. Then (Area of A BDE) : (Area of ...
The radius of base of a solid cylinder is 7 cm and its height is 21 cm. It is melted and converted into small bullets. Each bullet is of same size. Eac...
